US 12,110,256 B2
Method for manufacturing a part made from CMC
Eric Bouillon, Le Haillan (FR); Eric Philippe, Merignac (FR); Gildas Garnier, Merignac (FR); Maxime François Roger Carlin, Merignac (FR); and Michael Verrilli, Cincinnati, OH (US)
Assigned to SAFRAN CERAMICS, Le Haillan (FR)
Appl. No. 17/265,359
Filed by SAFRAN CERAMICS, Le Haillan (FR)
PCT Filed Jul. 23, 2019, PCT No. PCT/FR2019/051825
§ 371(c)(1), (2) Date Feb. 2, 2021,
PCT Pub. No. WO2020/025878, PCT Pub. Date Feb. 6, 2020.
Claims priority of provisional application 62/714,263, filed on Aug. 3, 2018.
Prior Publication US 2021/0292245 A1, Sep. 23, 2021
Int. Cl. C04B 35/80 (2006.01); C04B 35/563 (2006.01); C04B 35/565 (2006.01); C04B 35/571 (2006.01); C04B 35/58 (2006.01); C04B 35/584 (2006.01); C04B 35/628 (2006.01); F01D 5/28 (2006.01)
CPC C04B 35/80 (2013.01) [C04B 35/563 (2013.01); C04B 35/565 (2013.01); C04B 35/571 (2013.01); C04B 35/58092 (2013.01); C04B 35/584 (2013.01); C04B 35/62863 (2013.01); F01D 5/284 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/5268 (2013.01); C04B 2235/616 (2013.01); F05D 2300/6033 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for manufacturing a part made of a composite material with a matrix at least predominantly made of ceramic, the process comprising:
producing a fibrous structure by three-dimensional or multilayer weaving;
shaping the fibrous structure to form a fibrous preform core;
depositing an interphase on the fibers of the preform core;
consolidating the preform core by partial densification of said core comprising the formation of a matrix phase by chemical vapor infiltration or by a liquid process;
depositing a powder of ceramic particles in a porosity of the preform core;
wherein, said process comprises, after the steps of producing, shaping, depositing, consolidating and depositing, the following steps:
draping one or more layers of pre-impregnated non-woven fibers over all or part of the outer surface of the preform core;
performing a heat treatment of the preform core and of the pre-impregnated layer(s) to form a hybrid fibrous preform;
further densifying by infiltration of the hybrid fibrous preform with an infiltration composition containing at least silicon in order to obtain a ceramic matrix composite part.